Across
- 4. usually become positively charged ions
- 8. usually become negatively charged ions
- 9. when atoms share electrons
- 10. when atoms gain or lose electrons
Down
- 1. atoms linked through one another
- 2. C6H22O11
- 3. electrons in the outer shell
- 5. a tiny source of nuclear energy
- 6. group of 2 or more atoms
- 7. linking of atoms